| City : | St. Martinville City |
| County : | Ashtabula County, Douglas County, Lake County, Lincoln County, Madison County, St. Martin Parish |
| State : | Louisiana (LA) |
| | |
| Land Area : | 3.09 sq mi |
| Water Area : | 0.11 sq mi |
| Latitude : | 30.1260820 |
| Longitude : | -91.8315001 |
| | |
| Population (2010): | 6,114 |
| Population Estimate (2012) : | 6,165 |
| Population Density : | 1,980.40/sq mi |
| Housing Units (2012) : | 2,588 |
| Median Household Income (2012) : | $29,383 (Louisiana : $44,673, USA : $53,046) |
| Median Family Income (2012) : | $35,662 (Louisiana : $56,047, USA : $64,585) |
| Median House Price (2012) : | $76,100 (Louisiana : $137,700, USA : $181,400) |